Home / 1,139,025,947.70-1,571,844,228.08-630,389,650.44

Finding the Fourth Proportional to 1,139,025,947.70, 1,571,844,228.08 and 630,389,650.44

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Solution

The fourth proportional to 1,139,025,947.70, 1,571,844,228.08 and 630,389,650.44 is: 869,931,308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,025,947.70 : 1,571,844,228.08 = 630,389,650.44 : x
  2. Step 2: Convert to fraction form
    1,139,025,947.70/1,571,844,228.08 = 630,389,650.44/x
  3. Step 3: Cross multiply
    1,139,025,947.70x = 1,571,844,228.08 × 630,389,650.44
  4. Step 4: Simplify right side
    1,139,025,947.70x = 990,874,333,485,482,880
  5. Step 5: Solve for x
    x = 990,874,333,485,482,880/1,139,025,947.70
  6. Step 6: Final answer
    x = 869,931,308.84

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Double scale
Find fourth proportional to 1,139,025,948.70, 1,571,844,229.46 and 630,389,651.44
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.